<template>
  <div class="app-container">
    <el-row :gutter="40" class="panel-group">
      <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
        <div class="card-panel" @click="handleSetLineChartData('allUser')">
          <div class="card-panel-icon-wrapper icon-people">
            <svg-icon icon-class="peoples" class-name="card-panel-icon" />
          </div>
          <div class="card-panel-description">
            <div class="card-panel-text">总用户</div>
            <count-to :start-val="0" :end-val="userNum" :duration="1000" class="card-panel-num" />
          </div>
        </div>
      </el-col>
      <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
        <div class="card-panel" @click="handleSetLineChartData('onlineUser')">
          <div class="card-panel-icon-wrapper icon-people-online">
            <svg-icon icon-class="peoples" class-name="card-panel-icon" />
          </div>
          <div class="card-panel-description">
            <div class="card-panel-text">在线用户</div>
            <count-to :start-val="0" :end-val="onlineNum" :duration="1000" class="card-panel-num" />
          </div>
        </div>
      </el-col>
      <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
        <div class="card-panel" @click="handleSetLineChartData('allCourse')">
          <div class="card-panel-icon-wrapper icon-course">
            <svg-icon icon-class="excel" class-name="card-panel-icon" />
          </div>
          <div class="card-panel-description">
            <div class="card-panel-text">总课程</div>
            <count-to :start-val="0" :end-val="courseNum" :duration="1000" class="card-panel-num" />
          </div>
        </div>
      </el-col>
      <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
        <div class="card-panel" @click="handleSetLineChartData('allQuestion')">
          <div class="card-panel-icon-wrapper icon-question">
            <svg-icon icon-class="skill" class-name="card-panel-icon" />
          </div>
          <div class="card-panel-description">
            <div class="card-panel-text">总题目数</div>
            <count-to
              :start-val="0"
              :end-val="questionNum"
              :duration="1000"
              class="card-panel-num"
            />
          </div>
        </div>
      </el-col>
    </el-row>
    <el-row>
      <el-col :span="24">
        <el-card shadow="naver">
          <index-chart :xData="xData" :yData="yData" />
        </el-card>
      </el-col>
    </el-row>
  </div>
</template>

<script>
import IndexChart from "@/components/Echarts/indexChart";
import countTo from "vue-count-to";
import { $tabsData, $chartsData } from "@/api/index";
export default {
  components: {
    countTo,
    IndexChart
  },
  name: "Index",
  data() {
    return {
      userNum: 0,
      onlineNum: 0,
      courseNum: 0,
      questionNum: 0,
      xData: [],
      yData: []
    };
  },
  methods: {
    handleSetLineChartData(val) {
      switch (val) {
        case "allCourse":
          this.$router.push("/course/course");
          break;
        case "allUser":
          this.$router.push("/system/user");
          break;
        case "allQuestion":
          this.$router.push("/question/objective");
      }
    },
    getTabsData() {
      $tabsData().then(res => {
        this.userNum = res.data.userNum;
        this.onlineNum = res.data.onlineNum;
        this.courseNum = res.data.courseNum;
        this.questionNum = res.data.questionNum;
      });
    },
    getChartsData() {
      $chartsData().then(res => {
        this.chartDataFormat(res.data);
      });
    },
    chartDataFormat(data) {
      let userData = {
        name: "用户",
        type: "line",
        data: [],
        smooth: true
      };
      let courseData = {
        name: "课程",
        type: "line",
        data: [],
        smooth: true
      };
      let objData = {
        name: "客观题",
        type: "line",
        data: [],
        smooth: true
      };
      let subData = {
        name: "主观题",
        type: "line",
        data: [],
        smooth: true
      };
      data.users.forEach(item => {
        this.xData.push(item.date);
        userData.data.push(item.total);
      });
      data.courses.forEach(item => {
        courseData.data.push(item.total);
      });
      data.objs.forEach(item => {
        objData.data.push(item.total);
      });
      data.subs.forEach(item => {
        subData.data.push(item.total);
      });
      this.yData.push(userData);
      this.yData.push(courseData);
      this.yData.push(objData);
      this.yData.push(subData);
    }
  },
  created() {
    this.getTabsData();
    this.getChartsData();
  }
};
</script>

<style lang="scss" scoped>
.panel-group {
  margin-top: 18px;

  .card-panel-col {
    margin-bottom: 32px;
  }

  .card-panel {
    height: 108px;
    cursor: pointer;
    font-size: 12px;
    position: relative;
    overflow: hidden;
    color: #666;
    background: #fff;
    box-shadow: 4px 4px 40px rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.05);

    &:hover {
      .card-panel-icon-wrapper {
        color: #fff;
      }

      .icon-people-online {
        background: #36a3f7;
      }

      .icon-people {
        background: #40c9c6;
      }

      .icon-course {
        background: #f4516c;
      }

      .icon-question {
        background: #67c23a;
      }
    }
    .icon-people-online {
      color: #36a3f7;
    }

    .icon-people {
      color: #40c9c6;
    }

    .icon-course {
      color: #f4516c;
    }

    .icon-question {
      color: #67c23a;
    }

    .card-panel-icon-wrapper {
      float: left;
      margin: 14px 0 0 14px;
      padding: 16px;
      transition: all 0.38s ease-out;
      border-radius: 6px;
    }

    .card-panel-icon {
      float: left;
      font-size: 48px;
    }

    .card-panel-description {
      float: right;
      font-weight: bold;
      margin: 26px;
      margin-left: 0px;

      .card-panel-text {
        line-height: 18px;
        color: rgba(0, 0, 0, 0.45);
        font-size: 16px;
        margin-bottom: 12px;
      }

      .card-panel-num {
        font-size: 20px;
      }
    }
  }
}

@media (max-width: 550px) {
  .card-panel-description {
    display: none;
  }

  .card-panel-icon-wrapper {
    float: none !important;
    width: 100%;
    height: 100%;
    margin: 0 !important;

    .svg-icon {
      display: block;
      margin: 14px auto !important;
      float: none !important;
    }
  }
}
</style>

